F-150 Inspection To-Do list advice

Got to get my 200 f-150 4WD truck inspected one again.

One of the items is 3 ball joints. I have done a lot of work on my vehicles over the years and I think I may have done ball joints once upon a time but that was before the internet and back when I had a lot more bravado.

So what to I need to know before taking on the ball joint replacement project?

Any advice would be appreciated